Article

Fabrication and Characterization of Three-Dimensional Macroscopic All-Carbon Scaffolds

Department of Biomedical Engineering, Stony Brook University, Stony Brook, New York 11794-5281.
Carbon (Impact Factor: 6.2). 03/2013; 53:90-100. DOI: 10.1016/j.carbon.2012.10.035
Source: PubMed

ABSTRACT

We report a simple method to fabricate macroscopic, 3-D, free standing, all-carbon scaffolds (porous structures) using multiwalled carbon nanotubes (MWCNTs) as the starting materials. The scaffolds prepared by radical initiated thermal crosslinking, and annealing of MWCNTs possess macroscale interconnected pores, robust structural integrity, stability, and conductivity. The porosity of the three-dimensional structure can be controlled by varying the amount of radical initiator, thereby allowing the design of porous scaffolds tailored towards specific potential applications. This method also allows the fabrication of 3-D scaffolds using other carbon nanomaterials such as single-walled carbon nanotubes, fullerenes, and graphene indicating that it could be used as a versatile method for 3-D assembly of carbon nanostructures with pi bond networks.

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    • "environmental impact (Sharma et al. [18], Hunt [19], Buongiorno and Hu [20], Buongiorno [21], Kuznetsov and Nield [22], Nield and Kuznetsov [23] and Cheng–Minkowycz [24]). The researches, led by Lalwani et al. [25], Nield and Kuznetsov [26], Kuznetsov and Nield [27], Khan and Pop [28], Makinde and Aziz [29], Nadeem and Lee [30] and Khan et al. [31] found that their single-walled carbon nanotube (SWCNT) nanofluid exhibits an increase in conductivity of up to almost 15%; a value significantly higher than what has been achieved with nanoparticle-based nanofluids. SWCNT have unique electronic and mechanical properties which can be used in numerous applications, such as field-emission displays, nanocomposite materials, nanosensors, and logic elements. "
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    • "Graphene, a two-dimensional carbon nanostructure, due to its unique physiochemical properties, has shown potential for a variety of materials, electronic and biomedical applications123. Specifically, graphene nanoparticles called graphene nanoplatelets, that can be synthesized in macroscopic amounts using the modified Hummer's method have shown promise as multifunctional nanoparticle for imaging45, targeted drug delivery4678, gene delivery9, tissue engineering1011, and photodynamic/photothermal therapy121314. Development of graphene nanoparticles for any in vivo application requires thorough assessment of their toxicity and biocompatibility. "
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Questions & Answers about this publication

  • Gaurav Lalwani asked a question in Carbon Nanotubes:
    Fabrication of three dimensional macroscopic all carbon structures
    We report a simple method to fabricate macroscopic, 3-D, free standing, all-carbon scaffolds (porous structures) using multiwalled carbon nanotubes (MWCNTs) as the initial materials. The scaffolds prepared by radical initiated thermal crosslinking, and annealing of MWCNTs possess macroscale interconnected pores, robust structural integrity, stability, and electrical conductivity. The porosity of the three-dimensional structure can be controlled by varying the amount of radical initiator, thereby allowing the design of porous scaffolds tailored towards specific potential applications. This method also allows the fabrication of 3-D scaffolds using other carbon nanomaterials such as single-walled carbon nanotubes, fullerenes, and graphene indicating that it could be used as a versatile method for 3-D assembly of carbon nanostructures with pi bond networks.
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      [Show abstract] [Hide abstract]
      ABSTRACT: We report a simple method to fabricate macroscopic, 3-D, free standing, all-carbon scaffolds (porous structures) using multiwalled carbon nanotubes (MWCNTs) as the starting materials. The scaffolds prepared by radical initiated thermal crosslinking, and annealing of MWCNTs possess macroscale interconnected pores, robust structural integrity, stability, and conductivity. The porosity of the three-dimensional structure can be controlled by varying the amount of radical initiator, thereby allowing the design of porous scaffolds tailored towards specific potential applications. This method also allows the fabrication of 3-D scaffolds using other carbon nanomaterials such as single-walled carbon nanotubes, fullerenes, and graphene indicating that it could be used as a versatile method for 3-D assembly of carbon nanostructures with pi bond networks.
      Full-text · Article · Mar 2013 · Carbon